[juneau-lug] Fun *tab tricks
- From: James Zuelow <e5z8652@xxxxxxxxxx>
- To: juneau-lug@xxxxxxxxxxxxx
- Date: Fri, 6 Oct 2006 10:16:20 -0800
Things you will probably never want to do to your workstation:
Edit fstab:
For example if your root partition is on /dev/sda1, change the entry to point
to /dev/hda1. Or vice versa.
Reboot.
It works!
Just remember to change it back before you try to build an initrd image, or
you will get a kernel panic on boot when the initrd tries to load a
non-existant disk. Also, if you change any other partition, it simply won't
be mounted at boot. Only works for /
Lock mtab:
chattr +i /etc/mtab
Now you can mount your root partition, but any other partitions will fail.
Or, in one case I saw, a power outage and resulting file corruption locked
the file. Deleting the locked mtab and touching it allowed a mount -a to
work.
Fun!
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